Compare petrol and diesel engines based on the following points: 1) Operating cost 2) Compression ratio 3) Fuel Ignition
[3 marks]Classify the I. C. Engines in detail.
[4 marks]Explain working and construction of a simple carburetor with a neat sketch.
[7 marks]Define Stoichiometric, Rich and Lean mixture.
[3 marks]Explain the carburetion process and enlist the ideal requirements of a good carburettor
[4 marks]Write a note on alternative fuels for I.C. engines.
[7 marks]Explain the advantages of biofuels.
[7 marks]What do you mean by knocking?
[3 marks]Explain the effects of supercharging
[4 marks]Explain stages of combustion in S. I. engine.
[7 marks]What are the effects of knocking on engine performance?
[3 marks]Explain the necessity of engine cooling.
[4 marks]Explain stages of combustion in C. I. engine.
[7 marks]Define the governing of I. C. engine & also name the types of same.
[3 marks]Compare wet sump lubrication with dry sump lubrication system
[4 marks]Explain with a neat sketch splash lubrication system.
[7 marks]Enlist the major pollutants from gasoline and diesel engines
[3 marks]Explain the heat balance sheet of I. C. engine.
[4 marks]Explain the fuel supply system in SI engine.
[7 marks]Write down the working principle of a stratified charge engine.
[3 marks]Explain the Bharat Stage emission norms
[4 marks]The following data are collected from a 4-stroke single cylinder engine at full load: Bore = 200 mm, stroke = 280 mm, speed = 300 RPM, indicated mean effective pressure = 5.6 bar, torque on the drum = 250 Nm, fuel consumed = 4.2 kg/ hr, CV = 41000 KJ/kg. Determine1 mechanical efficiency, indicated thermal efficiency and brake thermal efficiency
[7 marks]Write a brief note on Wankel engine.
[3 marks]Explain Willan’s line method to find friction power of the engine.
[4 marks]Asingle cylinder 2 stroke engine running at 2000 RPM develops torque 10 Nm. The indicated power of the engine is 2.3 kW. find the loss due to F.P. as a percentage of brake power.
[7 marks]